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单词 craton
释义

Definition of craton in English:

craton

noun ˈkratɒnˈkreɪtɑn
Geology
  • A large stable block of the earth's crust forming the nucleus of a continent.

    Example sentencesExamples
    • Much of the craton remained stable up to Triassic time, with sedimentary sequences dominated by shallow-water and subaerial sediments.
    • Although continents were small, they consisted of stable cratons.
    • Mobile belts of various ages seem to have stitched Africa's Archean cratons together by Himalayan-style continental collisions.
    • Many workers have interpreted the Zimbabwe craton as vertically accreted crust.
    • Scotland lies on ancient continental crust known as the Hebridean craton.

Derivatives

  • cratonic

  • adjective
    Geology
    • It is limited to the east and south by wide cratonic areas, whereas to the west it is bounded by the Andean volcanic arc.
      Example sentencesExamples
      • Subsequently, the group expanded its range to encompass all of the Earth's major cratonic blocks.
      • The complex defines a series of cratonic fragments related to the collision of the Amazonian and Sao Francisco Cratons.
      • Many other mobile belts of various ages crisscross the African cratonic nuclei - these are all ripe for study.
      • Finally, small, intraplate events not obviously linked to a cratonic boundary are categorized as ‘hotspots’.

Origin

1930s: alteration of kratogen in the same sense, from Greek kratos 'strength'.

 
 

Definition of craton in US English:

craton

nounˈkreɪtɑnˈkrātän
Geology
  • A large stable block of the earth's crust forming the nucleus of a continent.

    Example sentencesExamples
    • Although continents were small, they consisted of stable cratons.
    • Much of the craton remained stable up to Triassic time, with sedimentary sequences dominated by shallow-water and subaerial sediments.
    • Mobile belts of various ages seem to have stitched Africa's Archean cratons together by Himalayan-style continental collisions.
    • Many workers have interpreted the Zimbabwe craton as vertically accreted crust.
    • Scotland lies on ancient continental crust known as the Hebridean craton.

Origin

1930s: alteration of kratogen in the same sense, from Greek kratos ‘strength’.

 
 
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更新时间:2024/12/23 7:04:18